Re: ENOTTY from ext3 code?

From: Richard B. Johnson (root@chaos.analogic.com)
Date: Tue Feb 19 2002 - 15:34:15 EST


On Tue, 19 Feb 2002, Pavel Machek wrote:

> Hi!
>
> ext3/ioctl.c:
>
> ...
> return -ENOTTY;
>
> Does it really make sense to return "not a typewriter" from ext3
> ioctl?

But yes! The de-facto return code for a file-system ioctl() that
is undefined, i.e., wrong parameter, is ENOTTY. This is because
it really means "Not a terminal". Terminals have the most ioctls.

Cheers,
Dick Johnson

Penguin : Linux version 2.4.1 on an i686 machine (797.90 BogoMips).

        111,111,111 * 111,111,111 = 12,345,678,987,654,321

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